Finding the Fourth Proportional to 253,468,224,136.20, 380,202,336,204.30 and 212,556,620,497.80
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Solution
The fourth proportional to 253,468,224,136.20, 380,202,336,204.30 and 212,556,620,497.80 is: 318,834,930,746.70
Step by Step Solution
- Step 1: Write the proportion equation
253,468,224,136.20 : 380,202,336,204.30 = 212,556,620,497.80 : x - Step 2: Convert to fraction form
253,468,224,136.20/380,202,336,204.30 = 212,556,620,497.80/x - Step 3: Cross multiply
253,468,224,136.20x = 380,202,336,204.30 × 212,556,620,497.80 - Step 4: Simplify right side
253,468,224,136.20x = 80,814,523,688,954,353,418,240 - Step 5: Solve for x
x = 80,814,523,688,954,353,418,240/253,468,224,136.20 - Step 6: Final answer
x = 318,834,930,746.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.